| article html file updated | 8 February 2020 00:53 CET | Update | https://www.mdpi.com/2075-4450/8/1/29 |
| article html file updated | 23 September 2019 16:35 CEST | Update | - |
| article html file updated | 4 May 2019 07:57 CEST | Update | - |
| article html file updated | 30 March 2017 11:03 CEST | Update | - |
| article html file updated | 7 March 2017 12:36 CET | Original file | - |
| article xml uploaded. | 7 March 2017 12:34 CET | Original file | https://www.mdpi.com/2075-4450/8/1/29/xml |
| article pdf uploaded. | 7 March 2017 12:34 CET | Updated version of record | https://www.mdpi.com/2075-4450/8/1/29/pdf |
| article pdf uploaded. | 6 March 2017 14:50 CET | Version of Record | https://www.mdpi.com/2075-4450/8/1/29/pdf-vor |
